Two bison (Bison bison) bulls facing off, Yellowstone National Park, Wyoming, United States of America, North America

animals bison bison bison buffalo bull bulls close up cold color image day environment facing off freezing horizontal looking at camera national park nature nobody north america outdoors photography profile remote side view snow together travel two animals united states wildlife winter wyoming yellowstone yellowstone national park america american americas animal cattle close up color colour cool daytime freeze frozen isolation jointly outside park seclusion snow covered us usa united states of america us usa wy